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Request approval for external paths and show token speed

This commit is contained in:
mirivlad 2026-05-21 23:29:33 +08:00
parent 234a3c957d
commit 9e5d5bbd5b
10 changed files with 244 additions and 20 deletions
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47
duck_core/api.py
View File

@ -1,6 +1,7 @@
import asyncio
import json
import logging
import time
from pathlib import Path
from typing import Any
@ -13,7 +14,7 @@ from pydantic import BaseModel
from duck_core.approvals.service import ApprovalService
from duck_core.config import get_settings
from duck_core.context_builder import ContextBuilder
from duck_core.context_builder import ContextBuilder, estimate_tokens
from duck_core.conversations.store import ConversationStore
from duck_core.events.store import EventStore
from duck_core.experience.recorder import ExperienceRecorder
@ -28,6 +29,32 @@ from duck_core.tasks.store import TaskStore
logger = logging.getLogger(__name__)
class GenerationStats:
def __init__(self) -> None:
self.started_at = time.perf_counter()
self.last_at = self.started_at
self.total_tokens = 0
self.rates: list[float] = []
def record(self, delta: str) -> None:
token_count = max(1, estimate_tokens(delta))
now = time.perf_counter()
elapsed = max(now - self.last_at, 0.001)
self.total_tokens += token_count
self.rates.append(token_count / elapsed)
self.last_at = now
def summary(self) -> dict[str, Any]:
elapsed = max(self.last_at - self.started_at, 0.001)
avg = self.total_tokens / elapsed if self.total_tokens else 0.0
return {
"total_tokens": self.total_tokens,
"min_tokens_per_second": round(min(self.rates), 2) if self.rates else 0.0,
"avg_tokens_per_second": round(avg, 2),
"max_tokens_per_second": round(max(self.rates), 2) if self.rates else 0.0,
}
class ChatRequest(BaseModel):
message: str
conversation_id: str | None = None
@ -297,6 +324,7 @@ def create_app() -> FastAPI:
reasoning_parts: list[str] = []
content_parts: list[str] = []
generation_stats = GenerationStats()
try:
messages = await runtime.context_builder.build_async_messages(
task, history, memory_records
@ -367,12 +395,14 @@ def create_app() -> FastAPI:
async for chunk in model_client.stream_chat("thinker", messages):
delta = str(chunk.get("delta") or "")
if chunk.get("type") == "reasoning_delta":
generation_stats.record(delta)
reasoning_parts.append(delta)
yield sse(
"reasoning_delta",
{"task_id": task.task_id, "delta": delta},
)
elif chunk.get("type") == "content_delta":
generation_stats.record(delta)
content_parts.append(delta)
yield sse(
"content_delta",
@ -396,6 +426,7 @@ def create_app() -> FastAPI:
{
"role": "thinker",
"model": model_client.get_role_config("thinker").model,
"generation_stats": generation_stats.summary(),
},
)
await task_store.complete_task(task.task_id, content)
@ -420,6 +451,7 @@ def create_app() -> FastAPI:
{
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
yield sse(
@ -430,6 +462,7 @@ def create_app() -> FastAPI:
"status": "completed",
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
except asyncio.CancelledError:
@ -518,6 +551,7 @@ def create_app() -> FastAPI:
async def generator():
reasoning_parts: list[str] = []
content_parts: list[str] = []
generation_stats = GenerationStats()
try:
await task_store.update_status(task_id, "running")
continued_event = await event_store.append(
@ -601,9 +635,11 @@ def create_app() -> FastAPI:
async for chunk in model_client.stream_chat("thinker", messages):
delta = str(chunk.get("delta") or "")
if chunk.get("type") == "reasoning_delta":
generation_stats.record(delta)
reasoning_parts.append(delta)
yield sse("reasoning_delta", {"task_id": task_id, "delta": delta})
elif chunk.get("type") == "content_delta":
generation_stats.record(delta)
content_parts.append(delta)
yield sse("content_delta", {"task_id": task_id, "delta": delta})
@ -624,6 +660,7 @@ def create_app() -> FastAPI:
{
"role": "thinker",
"model": model_client.get_role_config("thinker").model,
"generation_stats": generation_stats.summary(),
},
)
await task_store.complete_task(task_id, content)
@ -642,6 +679,7 @@ def create_app() -> FastAPI:
{
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
yield sse(
@ -652,6 +690,7 @@ def create_app() -> FastAPI:
"status": "completed",
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
except asyncio.CancelledError:
@ -702,6 +741,7 @@ def create_app() -> FastAPI:
async def generator():
reasoning_parts: list[str] = []
content_parts: list[str] = []
generation_stats = GenerationStats()
try:
await task_store.update_status(task_id, "running")
continued_event = await event_store.append(
@ -762,9 +802,11 @@ def create_app() -> FastAPI:
async for chunk in model_client.stream_chat("thinker", messages):
delta = str(chunk.get("delta") or "")
if chunk.get("type") == "reasoning_delta":
generation_stats.record(delta)
reasoning_parts.append(delta)
yield sse("reasoning_delta", {"task_id": task_id, "delta": delta})
elif chunk.get("type") == "content_delta":
generation_stats.record(delta)
content_parts.append(delta)
yield sse("content_delta", {"task_id": task_id, "delta": delta})
@ -785,6 +827,7 @@ def create_app() -> FastAPI:
{
"role": "thinker",
"model": model_client.get_role_config("thinker").model,
"generation_stats": generation_stats.summary(),
},
)
await task_store.complete_task(task_id, content)
@ -803,6 +846,7 @@ def create_app() -> FastAPI:
{
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
yield sse(
@ -813,6 +857,7 @@ def create_app() -> FastAPI:
"status": "completed",
"final_response": content,
"reasoning_content": reasoning_content,
"generation_stats": generation_stats.summary(),
},
)
except asyncio.CancelledError:

24
duck_core/tools/file_read.py
View File

@ -2,7 +2,7 @@ from pathlib import Path
from typing import Any
from duck_core.tools.base import ToolResult
from duck_core.tools.paths import WorkspacePathError, resolve_workspace_path
from duck_core.tools.paths import WorkspacePathError, candidate_path, resolve_workspace_path
class FileReadTool:
@ -15,12 +15,14 @@ class FileReadTool:
async def run(self, args: dict[str, Any]) -> ToolResult:
raw_path = str(args.get("path", ""))
approved = bool(args.get("_approved"))
try:
path = resolve_workspace_path(self.workspace, raw_path)
path = resolve_workspace_path(self.workspace, raw_path, allow_outside=approved)
except WorkspacePathError as exc:
return ToolResult(ok=False, error=str(exc))
if self._requires_approval(path):
return ToolResult(ok=False, error=f"Reading {raw_path} requires explicit approval")
path = candidate_path(self.workspace, raw_path)
return self._approval_required(raw_path, path, str(exc))
if self._requires_approval(path) and not approved:
return self._approval_required(raw_path, path, f"Reading {raw_path} requires explicit approval")
if not path.is_file():
return ToolResult(ok=False, error=f"File not found: {raw_path}")
if path.stat().st_size > self.max_bytes:
@ -34,3 +36,15 @@ class FileReadTool:
def _requires_approval(self, path: Path) -> bool:
parts = set(path.parts)
return path.name == ".env" or ".ssh" in parts or str(path) == "/etc/shadow"
def _approval_required(self, raw_path: str, path: Path, reason: str) -> ToolResult:
return ToolResult(
ok=False,
error=reason,
metadata={
"path": str(path),
"requires_approval": True,
"risk_level": self.risk_level,
"reason": reason,
},
)

26
duck_core/tools/file_write.py
View File

@ -1,7 +1,7 @@
from typing import Any
from duck_core.tools.base import ToolResult
from duck_core.tools.paths import WorkspacePathError, resolve_workspace_path
from duck_core.tools.paths import WorkspacePathError, candidate_path, resolve_workspace_path
class FileWriteTool:
@ -15,15 +15,31 @@ class FileWriteTool:
raw_path = str(args.get("path", ""))
content = str(args.get("content", ""))
overwrite = bool(args.get("overwrite", False))
approved = bool(args.get("_approved"))
try:
path = resolve_workspace_path(self.workspace, raw_path)
path = resolve_workspace_path(self.workspace, raw_path, allow_outside=approved)
except WorkspacePathError as exc:
return ToolResult(ok=False, error=str(exc))
if path.exists() and not overwrite:
path = candidate_path(self.workspace, raw_path)
return ToolResult(
ok=False,
error=f"{exc}. Writing outside workspace requires approval.",
metadata={
"path": str(path),
"requires_approval": True,
"risk_level": self.risk_level,
"reason": "Path is outside workspace",
},
)
if path.exists() and not overwrite and not approved:
return ToolResult(
ok=False,
error="Refusing to overwrite existing file without overwrite=true or approval",
metadata={"path": str(path)},
metadata={
"path": str(path),
"requires_approval": True,
"risk_level": self.risk_level,
"reason": "File exists and overwrite was not requested",
},
)
path.parent.mkdir(parents=True, exist_ok=True)
existed = path.exists()

17
duck_core/tools/list_dir.py
View File

@ -1,7 +1,7 @@
from typing import Any
from duck_core.tools.base import ToolResult
from duck_core.tools.paths import WorkspacePathError, resolve_workspace_path
from duck_core.tools.paths import WorkspacePathError, candidate_path, resolve_workspace_path
class ListDirTool:
@ -14,10 +14,21 @@ class ListDirTool:
async def run(self, args: dict[str, Any]) -> ToolResult:
raw_path = str(args.get("path") or ".")
approved = bool(args.get("_approved"))
try:
path = resolve_workspace_path(self.workspace, raw_path)
path = resolve_workspace_path(self.workspace, raw_path, allow_outside=approved)
except WorkspacePathError as exc:
return ToolResult(ok=False, error=str(exc))
path = candidate_path(self.workspace, raw_path)
return ToolResult(
ok=False,
error=f"{exc}. Access outside workspace requires approval.",
metadata={
"path": str(path),
"requires_approval": True,
"risk_level": self.risk_level,
"reason": "Path is outside workspace",
},
)
if not path.exists():
return ToolResult(ok=False, error=f"Directory not found: {raw_path}")
if not path.is_dir():

20
duck_core/tools/paths.py
View File

@ -5,9 +5,25 @@ class WorkspacePathError(ValueError):
pass
def resolve_workspace_path(workspace: str, relative_path: str) -> Path:
def candidate_path(workspace: str, requested_path: str) -> Path:
root = Path(workspace).resolve()
path = Path(requested_path).expanduser()
if path.is_absolute():
return path.resolve()
return (root / path).resolve()
def is_inside_workspace(workspace: str, path: Path) -> bool:
root = Path(workspace).resolve()
path = (root / relative_path).resolve()
if root != path and root not in path.parents:
return False
return True
def resolve_workspace_path(
workspace: str, relative_path: str, allow_outside: bool = False
) -> Path:
path = candidate_path(workspace, relative_path)
if not allow_outside and not is_inside_workspace(workspace, path):
raise WorkspacePathError(f"Path escapes workspace: {relative_path}")
return path

25
duck_core/tools/search_files.py
View File

@ -2,7 +2,12 @@ from fnmatch import fnmatch
from typing import Any
from duck_core.tools.base import ToolResult
from duck_core.tools.paths import WorkspacePathError, resolve_workspace_path
from duck_core.tools.paths import (
WorkspacePathError,
candidate_path,
is_inside_workspace,
resolve_workspace_path,
)
class SearchFilesTool:
@ -22,11 +27,22 @@ class SearchFilesTool:
max_matches = min(int(args.get("max_matches") or self.max_matches), self.max_matches)
if not query:
return ToolResult(ok=False, error="Search query is required")
approved = bool(args.get("_approved"))
try:
root = resolve_workspace_path(self.workspace, ".")
path = resolve_workspace_path(self.workspace, raw_path)
path = resolve_workspace_path(self.workspace, raw_path, allow_outside=approved)
except WorkspacePathError as exc:
return ToolResult(ok=False, error=str(exc))
path = candidate_path(self.workspace, raw_path)
return ToolResult(
ok=False,
error=f"{exc}. Searching outside workspace requires approval.",
metadata={
"path": str(path),
"requires_approval": True,
"risk_level": self.risk_level,
"reason": "Path is outside workspace",
},
)
if not path.exists():
return ToolResult(ok=False, error=f"Search path not found: {raw_path}")
@ -39,7 +55,10 @@ class SearchFilesTool:
break
if not candidate.is_file() or ".git" in candidate.parts:
continue
if is_inside_workspace(self.workspace, candidate):
relative = candidate.relative_to(root).as_posix()
else:
relative = str(candidate)
if not fnmatch(candidate.name, pattern) and not fnmatch(relative, pattern):
continue
if candidate.stat().st_size > self.max_file_bytes:

23
duck_core/web/static/app.js
View File

@ -369,6 +369,28 @@ function appendMessageText(article, delta) {
document.querySelector("#messages").scrollTop = document.querySelector("#messages").scrollHeight;
}
function formatTokenSpeed(value) {
const number = Number(value || 0);
return number.toFixed(number >= 10 ? 1 : 2);
}
function setGenerationStats(article, stats) {
if (!article || !stats) return;
const bubble = article.querySelector(".bubble");
if (!bubble) return;
let node = bubble.querySelector(".generation-stats");
if (!node) {
node = document.createElement("div");
node.className = "generation-stats";
bubble.append(node);
}
node.textContent = [
`min ${formatTokenSpeed(stats.min_tokens_per_second)} tok/s`,
`avg ${formatTokenSpeed(stats.avg_tokens_per_second)} tok/s`,
`max ${formatTokenSpeed(stats.max_tokens_per_second)} tok/s`,
].join(" · ");
}
function appendInlineReasoning(article, delta) {
const block = article?.querySelector(".message-reasoning");
const body = block?.querySelector("pre");
@ -609,6 +631,7 @@ async function handleAssistantStreamEvent(pending, name, data, context) {
setMessagePending(pending, data.final_response || "No final content returned.");
}
pending.querySelector(".message-meta span").textContent = data.status;
setGenerationStats(pending, data.generation_stats);
setStatus("#task-status", data.task_id, data.status === "completed" ? "ok" : "warn");
finishInlineReasoning(pending, data.reasoning_content);
await refreshEvents(data.task_id);

7
duck_core/web/static/style.css
View File

@ -700,6 +700,13 @@ dd {
font-size: 13px;
}
.generation-stats {
margin-top: 8px;
color: var(--muted);
font-size: 11px;
line-height: 1.4;
}
.debug-heading {
display: flex;
align-items: center;

53
tests/smoke/test_api_stream_chat.py
View File

@ -47,6 +47,10 @@ def test_stream_chat_endpoint_emits_sse_reasoning_and_content(tmp_path, monkeypa
assert "event: reasoning_delta" in body
assert "event: content_delta" in body
assert "event: done" in body
assert '"generation_stats":' in body
assert '"min_tokens_per_second":' in body
assert '"avg_tokens_per_second":' in body
assert '"max_tokens_per_second":' in body
assert "thinking" in body
assert "answer" in body
@ -111,6 +115,55 @@ def test_stream_chat_endpoint_executes_tool_before_streaming_answer(tmp_path, mo
assert "event: done" in body
def test_stream_chat_requests_approval_for_directory_outside_workspace(tmp_path, monkeypatch):
monkeypatch.setenv("DUCK_DB_PATH", str(tmp_path / "duck.sqlite3"))
workspace = tmp_path / "workspace"
outside = tmp_path / "outside"
workspace.mkdir()
outside.mkdir()
(outside / "note.txt").write_text("external")
async def fake_chat(self, role, messages, temperature=None, max_output_tokens=None, response_format=None):
assert role == "action"
return ModelResponse(
role=role,
model="local-main",
content=json.dumps(
{
"kind": "action_directive",
"intent": "list external directory",
"risk_level": "low",
"actions": [
{
"tool": "list_dir",
"args": {"path": str(outside)},
"reason": "User asked for that directory",
}
],
}
),
reasoning_content=None,
raw={},
latency_ms=1.0,
)
monkeypatch.setattr("duck_core.model_client.ModelClient.chat", fake_chat)
client = TestClient(create_app())
with client.stream(
"POST",
"/v1/chat/stream",
json={"message": "show outside", "workspace": str(workspace), "debug": True},
) as response:
body = "".join(response.iter_text())
assert response.status_code == 200
assert "event: tool_approval_requested" in body
assert '"tool": "list_dir"' in body
assert str(outside) in body
assert '"status": "waiting_for_approval"' in body
def test_continue_stream_executes_approved_tool_and_streams_answer(tmp_path, monkeypatch):
monkeypatch.setenv("DUCK_DB_PATH", str(tmp_path / "duck.sqlite3"))
action_calls = 0

20
tests/smoke/test_tool_gateway.py
View File

@ -102,6 +102,26 @@ async def test_tool_gateway_lists_workspace_directory(tmp_path):
assert escaped.ok is False
@pytest.mark.asyncio
async def test_tool_gateway_requests_approval_for_directory_outside_workspace(tmp_path):
workspace = tmp_path / "workspace"
outside = tmp_path / "outside"
workspace.mkdir()
outside.mkdir()
(outside / "note.txt").write_text("external")
gateway = ToolGateway.default(str(workspace))
action = {"tool": "list_dir", "args": {"path": str(outside)}}
blocked = await gateway.run_action(action)
approved = await gateway.run_action(action, approved=True)
assert blocked.ok is False
assert blocked.metadata["requires_approval"] is True
assert blocked.metadata["path"] == str(outside)
assert approved.ok is True
assert "note.txt" in approved.output
@pytest.mark.asyncio
async def test_tool_gateway_searches_file_contents(tmp_path):
(tmp_path / "src").mkdir()